- UMM AL QUWAIN U.A.E
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Our Sew Eurodrive explosion-proof industrial gear units for II2GD and II3GD applications offer you the proven performance, durability and safety of our drives for potentially explosive atmospheres.
For operators or original equipment manufacturers of machines or conveyor systems, it is essential that the drives they use are resilient, easy-to-maintain and reliable in operation.
The industrial gear units of the X, MC series and the planetary gearmotors meet the requirements of the 94/9/EC European Directive for explosion protection, or as of April 20, 2016 of the EU Directive 2014/34/EU (ATEX) or ATEX95 in the European Union.
Other European countries, such as Switzerland, have also adopted this regulation.
Special measures are required for the operation of systems and machinery in areas with potentially explosive air/gas or air/dust mixtures. If formation of this kind of mixture cannot be prevented, specially protected gear units are required. Applicable standards and regulations govern the use of resources within existing hazard zones. Our explosion-proof industrial gear units of the MC, X series and the planetary gear units meet the design requirements for group II, category 2G or 3G (potentially explosive gas atmospheres) and 2D or 3D (potentially explosive dust atmospheres). The gear units are suitable for use in zones 1 and 21 or zones 2 and 22. With SEWEURODRIVE, you’re always on the safe side.
Girth gears are used to drive large, rotating systems such as dryers, rotary kilns or horizontal mills. The flexible concept from SEW-EURODRIVE has simplified manufacturing, transport and assembly.
Traditional girth gears generally consist of two to four segments and are assembled together for processing. This requires extremely large and expensive machines for production, handling and heat treatment. Besides this, the size of component parts creates disadvantages with regard to casting quality and heat treatment.
The innovative girth gears from SEW-EURODRIVE are always divided into several identical segments. This means the component parts are short and easy to handle. By combining the latest materials engineering and state-of-the-art manufacturing methods, the SEW-EURODRIVE girth gears avoid the disadvantages of the traditional manufacturing process and create new benefits.
SEW‑EURODRIVE only uses austempered ductile iron (ADI) for the production of the girth gears. The classical materials cannot match its tensile strength.
ADI is described in detail in the following international standards:
International Organization for Standardization 17804 “Ausferritic spheroidal graphite cast irons”
AGMA 939-A07 “Austempered Ductile Irons For Gears”
